Window suspension means for venetian blinds



Dec. 27, 1949 H. JOHNSON WiNDQW SUSPENSION MEANS FOR VENETIAN BLINDS Filed June 10, 1948 mam BY HERB ATT RNEYS Patented Dec. 27, 1949 UNITED STATES TENT OFFICE WINDOW SUSPENSION MEANS FOR VENETIAN BLINDS 2 Claims.

My invention refers to Venetian blinds and it has for its primary object to provide a simple and convenient window suspension means, whereby a standard Venetian blind unit may be quickly adjusted to a window and swung clear of the window and thereafter dropped to a convenient position for thoroughly cleaning both sides of the slats While the worker is comfortably seated, it beingunderstood that the blind is manipulated by a single master cord and also that the blind, after removal from the window, may be properly cleansed.

The standard type of a Venetian blind comprises the usual tiltable mounting strip, having a series of slats supported by tapes and the last master slat of the series serves to nest thereon a series of slats, when actuated by one set of cords for folding the same at different elevations, and the second set of cords for varying the angle of the slats. The unit also embodies a mounting strip carrying the usual pulleys and cords, whereby the slats are manipulated and said mounting strip is suitably encased and anchored in a supporting box.

The specific object of my invention is to provide an arm pivoted to one side of a window frame, the end of the arm carrying a standard locking pulley and hanger therefor. The said locking pulley has trained thereon a master cord, which cord is removably secured to the blind housing, whereby the entire blind equipment may be cleared, with reference to the window, and swung to one side for cleaning purposes. In other words, by manipulating the master cord, the blind equipment is bodily removed from the window and lowered to a position where it may be conveniently cleansed.

With the above and other objects in view, which will appear as the description proceeds, the invention resides in the novel construction, combination and arrangement of parts, substantially as hereinafter described, and more particularly defined by the appended claims, it being understood that such changes in the precise embodiment of the herein disclosed invention may be made as come within the scope of the claims.

In the accompanying drawings is illustrated one complete example of the physical embodiment of the present invention constructed according to the best mode so far devised for the practical application of the principles thereof.

In the drawings:

Fig. 1 represents a fragmentary face View of a window and its casing having fitted thereto a Venetian blind, including a suspension means embodying the features of my invention.

Fig. 2 is a sectional plan view of the same, the section being indicated by line 22 of Fig. 1.

Fig. 3 is a longitudinal sectional view of the blind equipment upon an enlarged scale, the section being indicated by line 3-3 of Fig. 1.

Fig. 4 is a detail sectional view through the pivot connection of a blind supporting arm, the section being indicated by 4-4 of Fig. 1.

Fig. 5 is a plan view of the same, the section being indicated by line 55 of Fig. 1; and

Fig. 6 is a longitudinal sectional view illustrating a modified form of the master cord coupling connection to the box-like housing.

Referring by characters to the drawings, A indicates the top sill of a window frame, and B the window seated back into the frame.

Seated into the window casing, under the top sill thereof, is a rectangular box I, having a downwardly positioned mouth. Pivotally nested in said box is the usual slat mounting strip 2, having secured thereto pairs of tapes 3, provided with cross connected tapes 3', to which tapes the slats 4 are secured, it being understood that the lower master slat of the series, not shown, has secured thereto the longitudinally disposed flexible tapes 3, all of which mechanism forms no part of my invention.

The ends of the mounting strip carry the usual manipulating pulleys, which pulleys have trained thereover a set of slat raising and lowering cords 5, and a second set of pulley carrying cords 5', which serve to position the angle of said slats.

The top of the housing box I is securely clamped to the upper sill of the window frame into which it is nested, as best shown in Figs. 1 and 3 of the drawings.

Centrally fitted to the mouth of the box I, is a cradle 5, having spaced legs 6' extending across the box and terminating with upwardly extended fingers 6" which clamp the rear face of the box. The base plate of the cradle terminates with a centrally disposed hook 1, which hook is engaged by a clip I, as indicated in Figs. 1, 3, and 6 of the drawings.

The end of the master cord 8 is secured to the clip and thereafter it is trained over a standard right and left spirally threaded pulley 9, which pulley is mounted in a hanger Ill. The hanger I0 is slidably mounted upon an arm II, which arm, at one end, is secured to a stud II. The stud is hingedly mounted in ears of a bracket 12, the same being secured to one side of the upper sill A, as best illustrated in Fig. 4 of the drawings.

The free end of the arm II is provided with a i stop pin l I" that serves to limit the sliding movement of the hanger ID. The free or manipulating end of the master cord 8 is suitably secured to the bottom portion of the window frame, now shown, and when so secured, it will firmly lock the box I in a position nested within the Window frame, it being understood that the sliding hanger permits free lateral adjustment of the Venetian blind, whereby it is properly seated within the 3 window casing.

Fig. 6 of the drawings illustrates the cradle hook I detached from said cradle and permanently secured to the box I for removably atgages a stop lug 12' extending from one ear of the bracket l2.

After the blind is cleared from its functioning position, it may be bodily dropped to or near the floor of the room, whereby it can be conveniently cleaned on all sides and the window, being clear of the blind, can also be cleaned inside and out without inconvenience.

I claim:

1. In a standard Venetian blind having a mounting strip carrying a slat raising and lowering pulley and a slat tilting pulley, an open mouthed housing box for encasing the mounting strip and associated parts, a cradle including legs having upturned ends clamping the box, a centrally disposed hook extending from the cradle, an arm adapted to be pivoted to one side of a window frame, a hanger slidably mounted upon the arm carrying a locking pulley, and a master cord secured to the cradle hook and trained over the locking pulley, whereby the box is rigidly held in nested engagement with the upper sill of a window, and by manipulation of the master cord, the box and associated blind unit may be swung clear of the window casing and lowered to a position for conveniently cleaning the slats of the blind.

2. In a standard Venetian blind having a mounting strip and manipulating pulleys, an open mouthed box having the mounting strip journaled therein, a cradle secured by lapped engagement with the center of the box, a bracket adapted to be secured to one side of a window frame, a stud pivotally mounted in the bracket, an arm pivotally secured to said stud, adapted to extend outwardly midway of a window, a pulley carrying hanger slidably mounted upon the free end of the arm, and a master cord secured to the cradle and trained over the hanger pulley, whereby the blind, as a unit, may be swung clear of a window casing and dropped to a convenient position near the floor of a room for cleaning purposes.

HERBERT L. JOHNSON.

No references cited. 

